204850906 has 16 divisors (see below), whose sum is σ = 331183944. Its totient is φ = 94469184.

The previous prime is 204850897. The next prime is 204850937. The reversal of 204850906 is 609058402.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 107019025 + 97831881 = 10345^2 + 9891^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40156 + ... + 44968.

Almost surely, 2^204850906 is an apocalyptic number.

204850906 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

204850906 is a deficient number, since it is larger than the sum of its proper divisors (126333038).

204850906 is a wasteful number, since it uses less digits than its factorization.

204850906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6465.

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 204850906 is about 14312.6135279340. The cubic root of 204850906 is about 589.4938740978.

The spelling of 204850906 in words is "two hundred four million, eight hundred fifty thousand, nine hundred six".